Plotter



w. c. LINEAwEAvEII.

PLOTTER.

APPLICATION FILED JUNE 4. |921.

1,417,753, ranma May 30, 1922.-

2 SHEETS-SHEET l.

wv. c. LINEAWEAVER.

PLOTTER.

APPLICATION'HLED JUNE 4,192l.

- Patented May 30, 1922.

2 SHEETS-SHEET 2.

www,

ww MMM? NVZ UNITED STATES PATENT OFFICE.

WILLIAM C. LINEAWEAVER, OF FORT SILL, OKLAHOMA, .ASSIGNOR OF ONE-HALF TO WORTHINGTON SWIFT, OF LAWTON, OKLAHOMA.

PLOTTER.

Application filed .Tune 4,

To @ZZ to 710m t may concern:

Be it known that l, WrLLrAn C. LinnawnfivER, a citizen of the UnitedStates, residing at Fort Sill, in the county of Comanche and State of Oklahoma, have invented certain new and useful improvements in Plotters, of which the following is a speci tication, reference being had therein to the accompanying drawings.

This invention relates to plotters and has for an object to provide an instrument embodying new and improved features of convenience, accuracy and expedition.

AY further object of the invention is to provide a rectangular' and preferably square iframe work having a cross bar perpendicular to the connecting sides and rigidly, but separably, secured thereto with a rule sliding relative to said cross bar, with means for maintaining said slide rule in perpendicular relation to said cross bar.

lVith these and other objects in view thev invention comprises certain novel parts, units, elements, combinations, functions and mechanical movements, as disclosed in the drawing, together with mechanical equivalents thereof, as will be hereinafter more fully described and claimed'.

In the drawings:

Figure 1 is a view of the plotter in top plan superposed upon a sheet on which plotting is being carried out;

Figure 2 is a top plan view oi' the plotter with parts broken away showing the elements in enlarged relation;

Figure 3 is a sectional view through the plotter on line 3--3 of Figure 2, and

Figure i is an enlarged perspective view ot one end of the sliding rule and the sliding connection with the side frame.

Like characters of reference indicate corresponding parts throughout the several views.

The improved plotter which forms the subject matter of this application comprises a rectangular and preferably square Jframe composed of side bars 10 and 11 and perpendicular bars 12 and 13, the latter bars being grooved` as indicated at 141.

To the side bars 10 and 11 a cross bar 15 is rigidly, but removably, secured by means of bolts and thumb nuts 16. The cross bar 15 is provided with a rib 17 and a rule, indicated as an entirety at 18, slides relative to the cross bar 15 and side bars 12 and 13.

The rule 18 is made up ot sections, as in- Specication of Letters Patent.

Patented May 30, 1922.

i921. serial No. 475,058.

dic-ated more particularly at Figure 3, and where the bar 15 is crossed, a keeper 19 is employed rigidly but removably secured to the sections of the rule by means of screws and thumb nuts 20.

The sliding connection of the rule 18 with the side bars 12 and 13 consists oi a block 21 at each end, rigidly but removably secured thereto by bolts and thumb nuts 22, having a tongue 23 slidable in the grooves 14 in the bars 12 and 13.

The frame is made rigid in any usual and ordinary manner, as by means of the braces 24, so that the rule 18 will move longitudinally oi the bar 15 conveniently without binding and by reason ot' the engagement of the parts will be maintained in perpendicularity with said bar 15.

lVith the device disposed upon a sheet, as shown at Figure 1, it is obvious that plotting may be carried out by moving the rule 18 relative to the bar 15 and consequently to the work indicated at 25, and by moving the entire organization relative to the sheet or the sheet relative to the organization, the bar 15 may be brought into such relation to the sheet as may be desired in conjunction with the sliding rule 18.

lNhile it would be possible to point out here a result which might come from the use of such an organization and the exact manner of using it, it will be obvious that there will be a great number of uses for such a device and that any explanation of the manner oi use would be superiious and would be directed to only a single function or a single means from a multitude of possibilities and without adding to the understanding of the structure as such.

Vhat I claim to be new is:

1. A plotter comprising a rigid frame, a bar extending across the frame and rigidly secured to opposite members of the trame, and a rule slidable along and relative to the bar and to the iframe sections in parallelism with the bar.

2. A plotter comprising a rigid frame, a bar extending across the frame in parallelisin with some of the 'frame members and perpendicular to other of the fra-me members, a rule slidable upon the bar and perpendicular thereto and to some of the frame members, and means to maintain the perpendicularity of said sliding rule relative to said bar and frame members.

3. A plotter comprising a rigid frame, a

ber extending across the frame and rigidly secured thereto by removable attaching members, some of the'rame members being provided with slots in their proximate edges, il. rule slidable relative to the bar and provided with detachable extremities :ieeommodetedend sliding in the seid slots7 and means carried by the sliding rule to maintain its perpendieularity to the bar.

4. A plotter Comprising a rigid frame, a

barextending across the frame and rigidly Y and removably attached to opposite frame members and in perpendioulerity thereto,

rule composed of sections depressed upon opposite sides of the bar end having ei;- tremities sliding 1n the slots, and a member Vspnning; the bar and rigidly attached toY the rule sections. 

